| Orth | Species | Gene | Name | Description | Fitness | %Id | Cov |
| | Sphingobium sp. HT1-2 | GFF4341 | | hypothetical protein | insig. | 100 | 100 |
| | Sphingobium sp. HT1-2 | GFF3049 | | Transcriptional regulator, Crp/Fnr family | cofit | 55 | 97 |
| | Agrobacterium fabrum C58 | Atu1602 | | transcriptional activator, Crp family | strong | 42 | 98 |
| | Phaeobacter inhibens DSM 17395 | PGA1_c30140 | | transcriptional activator protein FnrL | insig. | 39 | 94 |
| | Dinoroseobacter shibae DFL-12 | Dshi_0660 | | transcriptional regulator, Crp/Fnr family (RefSeq) | insig. | 39 | 94 |
| | Xanthomonas campestris pv. campestris strain 8004 | Xcc-8004.2952.1 | | transcriptional regulator, Crp/Fnr family | sig. | 38 | 98 |
| | Sphingomonas koreensis DSMZ 15582 | Ga0059261_1530 | | cAMP-binding proteins - catabolite gene activator and regulatory subunit of cAMP-dependent protein kinases | insig. | 34 | 96 |
| | Azospirillum brasilense Sp245 | AZOBR_RS01145 | | Crp/Fnr family transcriptional regulator | cofit | 32 | 97 |
| | Azospirillum sp. SherDot2 | MPMX19_00212 | | Nitrogen fixation regulation protein FixK | cofit | 32 | 97 |
| | Rhodospirillum rubrum S1H | Rru_A3322 | | Transcriptional Regulator, Crp/Fnr family (NCBI) | cofit | 32 | 98 |
| | Magnetospirillum magneticum AMB-1 | AMB_RS22105 | | transcriptional regulator | insig. | 33 | 96 |
| | Bosea sp. OAE506 | ABIE41_RS15480 | | helix-turn-helix domain-containing protein | insig. | 38 | 86 |
| | Sinorhizobium meliloti 1021 | SMa1141 | | FNR/CRP family transcriptional regulator | insig. | 31 | 94 |
| | Xanthobacter sp. DMC5 | GFF3783 | | Nitrogen fixation regulation protein FixK | insig. | 38 | 79 |
| | Rhodopseudomonas palustris CGA009 | TX73_021940 | | helix-turn-helix domain-containing protein | no data | 34 | 96 |
| o | Pseudomonas fluorescens FW300-N1B4 | Pf1N1B4_4177 | | transcriptional regulator, Crp/Fnr family | insig. | 31 | 99 |
| | Caulobacter crescentus NA1000 | CCNA_00789 | | hypoxia transcriptional regulator FixK | strong | 35 | 82 |
| | Caulobacter crescentus NA1000 Δfur | CCNA_00789 | | hypoxia transcriptional regulator FixK | cofit | 35 | 82 |
| o | Pseudomonas sp. DMC3 | GFF3609 | | Anaerobic regulatory protein | cofit | 31 | 99 |
| o | Pseudomonas fluorescens FW300-N2E3 | AO353_19870 | | Crp/Fnr family transcriptional regulator | insig. | 30 | 99 |
| | Pseudomonas simiae WCS417 | PS417_15825 | | Crp/Fnr family transcriptional regulator | insig. | 29 | 100 |
| | Sinorhizobium meliloti 1021 | SMa1225 | | transcriptional regulator FixK | no data | 35 | 83 |
| | Marinobacter adhaerens HP15 | HP15_634 | | transcriptional regulator, Crp/Fnr family | insig. | 27 | 99 |
| | Rhizobium sp. OAE497 | ABIE40_RS26175 | | helix-turn-helix domain-containing protein | insig. | 31 | 90 |
| | Sinorhizobium meliloti 1021 | SMa0762 | | transcriptional regulator FixK | no data | 35 | 83 |
| | Azospirillum brasilense Sp245 | AZOBR_RS23090 | | Crp/Fnr family transcription regulator | insig. | 32 | 90 |
| o | Lysobacter sp. OAE881 | ABIE51_RS03805 | | fumarate/nitrate reduction transcriptional regulator Fnr | cofit | 32 | 93 |
| o | Pseudomonas sp. S08-1 | OH686_02245 | | Fumarate and nitrate reduction regulatory protein | insig. | 30 | 97 |
| o | Ralstonia solanacearum PSI07 | RPSI07_RS15200 | | Crp/Fnr family transcriptional regulator | insig. | 30 | 96 |
| | Azospirillum sp. SherDot2 | MPMX19_03014 | | Transcriptional activatory protein AadR | insig. | 31 | 91 |
| o | Pseudomonas aeruginosa MRSN321 | DY961_RS19345 | anr;inference=COORDINATES | transcriptional regulator Anr | strong | 29 | 97 |
| o | Pseudomonas aeruginosa PA14 | IKLFDK_07375 | | transcriptional regulator Anr | strong | 29 | 97 |
| o | Pseudomonas aeruginosa PUPa3 | DQ20_RS53475 | anr;inference=COORDINATES | transcriptional regulator Anr | strong | 29 | 97 |
| o | Pseudomonas putida KT2440 | PP_3287 | | transcriptional regulator with 4Fe-4S cluster; Crp/Fnr family | sig. | 32 | 100 |
| o | Pseudomonas orientalis W4I3 | QF045_RS22590 | | fumarate/nitrate reduction transcriptional regulator Fnr | sig. | 31 | 98 |
| o | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_01640 | | transcriptional regulator, Crp/Fnr family | sig. | 31 | 96 |
| o | Paraburkholderia sabiae LMG 24235 | QEN71_RS17975 | | helix-turn-helix domain-containing protein | strong | 31 | 96 |
| | Hydrogenophaga sp. GW460-11-11-14-LB1 | GFF4142 | | transcriptional regulator, Crp/Fnr family | insig. | 29 | 96 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS31300 | | Crp/Fnr family transcriptional regulator | insig. | 29 | 96 |
| o | Pseudomonas fluorescens FW300-N2C3 | AO356_02485 | | transcriptional regulator | sig. | 32 | 98 |
| | Azospirillum brasilense Sp245 | AZOBR_RS17340 | | hypothetical protein | insig. | 32 | 93 |
| o | Acidovorax sp. GW101-3H11 | Ac3H11_975 | | transcriptional regulator, Crp/Fnr family | no data | 29 | 97 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_23940 | | Crp/Fnr family transcriptional regulator | insig. | 31 | 99 |
| o | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_1516 | | transcriptional regulator, Crp/Fnr family | insig. | 31 | 99 |
| o | Pseudomonas fluorescens SBW25 | PFLU_RS22395 | | fumarate/nitrate reduction transcriptional regulator Fnr | cofit | 31 | 98 |
| o | Pseudomonas fluorescens SBW25-INTG | PFLU_RS22395 | | fumarate/nitrate reduction transcriptional regulator Fnr | strong | 31 | 98 |
| | Pseudomonas sp. RS175 | PFR28_02314 | | Fumarate and nitrate reduction regulatory protein | insig. | 30 | 99 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS21215 | | Crp/Fnr family transcriptional regulator | strong | 31 | 89 |
| | Pseudomonas simiae WCS417 | PS417_20785 | | transcriptional regulator | strong | 31 | 98 |
| | Pseudomonas stutzeri RCH2 | Psest_2538 | | cAMP-binding proteins - catabolite gene activator and regulatory subunit of cAMP-dependent protein kinases | strong | 30 | 98 |
| | Pseudomonas sp. RS175 | PFR28_01079 | | Transcriptional activator protein Anr | no data | 32 | 98 |
| | Pseudomonas fluorescens FW300-N1B4 | Pf1N1B4_3867 | | Fumarate and nitrate reduction regulatory protein | no data | 32 | 98 |
| | Pseudomonas sp. RS175 | PFR28_01975 | | Fumarate and nitrate reduction regulatory protein | no data | 30 | 99 |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF2656 | | Fumarate and nitrate reduction regulatory protein | sig. | 27 | 98 |
| o | Paraburkholderia graminis OAS925 | ABIE53_004332 | | CRP/FNR family transcriptional regulator | sig. | 33 | 82 |
| | Pseudomonas sp. DMC3 | GFF711 | | Transcriptional activator protein Anr | no data | 32 | 98 |
| | Pseudomonas sp. SVBP6 | COO64_RS18640 | fnrA | Crp/Fnr family transcriptional regulator FnrA | insig. | 31 | 98 |
| | Pseudomonas fluorescens GW456-L13 | PfGW456L13_4071 | | Fumarate and nitrate reduction regulatory protein | insig. | 30 | 97 |
| | Pectobacterium carotovorum WPP14 | HER17_RS10525 | | fumarate/nitrate reduction transcriptional regulator Fnr | cofit | 28 | 98 |
| | Escherichia coli ECRC98 | JDDGAC_04785 | fnr | fumarate/nitrate reduction transcriptional regulator Fnr | insig. | 27 | 98 |
| o | Dechlorosoma suillum PS | Dsui_1646 | | cAMP-binding protein | strong | 28 | 97 |
| | Klebsiella pneumoniae MKP103 | KDGMDA_21005 | | fumarate/nitrate reduction transcriptional regulator Fnr | strong | 27 | 98 |
| o | Pseudomonas lactucae CFBP13502 | GEMAOFIL_04302 | | Transcriptional activator protein Anr | no data | 31 | 98 |
| o | Ralstonia sp. UNC404CL21Col | ABZR87_RS20035 | | helix-turn-helix domain-containing protein | insig. | 30 | 96 |
| | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_2323 | | Fumarate and nitrate reduction regulatory protein | sig. | 32 | 98 |
| | Enterobacter asburiae PDN3 | EX28DRAFT_1540 | | cAMP-binding proteins - catabolite gene activator and regulatory subunit of cAMP-dependent protein kinases | cofit | 27 | 98 |
| | Enterobacter sp. TBS_079 | MPMX20_02035 | | Fumarate and nitrate reduction regulatory protein | strong | 27 | 98 |
| | Escherichia fergusonii Becca | EFB2_02593 | | Fumarate and nitrate reduction regulatory protein | sig. | 27 | 98 |
| | Escherichia coli ECOR27 | NOLOHH_19940 | fnr | fumarate/nitrate reduction transcriptional regulator Fnr | insig. | 27 | 98 |
| | Escherichia coli ECOR38 | HEPCGN_25925 | fnr | fumarate/nitrate reduction transcriptional regulator Fnr | insig. | 27 | 98 |
| | Escherichia coli ECRC100 | OKFHMN_02240 | fnr | fumarate/nitrate reduction transcriptional regulator Fnr | insig. | 27 | 98 |
| | Escherichia coli ECRC102 | NIAGMN_26410 | fnr | fumarate/nitrate reduction transcriptional regulator Fnr | insig. | 27 | 98 |
| | Escherichia coli ECRC62 | BNILDI_18090 | fnr | fumarate/nitrate reduction transcriptional regulator Fnr | strong | 27 | 98 |
| | Escherichia coli ECRC99 | KEDOAH_26530 | fnr | fumarate/nitrate reduction transcriptional regulator Fnr | no data | 27 | 98 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_02348 | | Fumarate and nitrate reduction regulatory protein | sig. | 27 | 98 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS08005 | | fumarate/nitrate reduction transcriptional regulator Fnr | insig. | 27 | 98 |
| | Escherichia coli BW25113 | b1334 | fnr | DNA-binding transcriptional dual regulator, global regulator of anaerobic growth (NCBI) | strong | 27 | 98 |
| | Alteromonas macleodii MIT1002 | MIT1002_02137 | | Fumarate and nitrate reduction regulatory protein | strong | 27 | 97 |
| | Pseudomonas sp. BP01 | JOY50_RS00125 | fnrA | Crp/Fnr family transcriptional regulator FnrA | insig. | 30 | 98 |
| | Klebsiella michiganensis M5al | BWI76_RS16185 | | transcriptional regulator FNR | no data | 27 | 98 |
| | Pseudomonas stutzeri RCH2 | Psest_2223 | | cAMP-binding proteins - catabolite gene activator and regulatory subunit of cAMP-dependent protein kinases | insig. | 31 | 96 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_00660 | | transcriptional regulator | strong | 31 | 98 |
| | Pseudomonas putida KT2440 | PP_4265 | | DNA-binding transcriptional dual regulator | strong | 30 | 98 |
| o | Ralstonia solanacearum GMI1000 | RS_RS00940 | | Crp/Fnr family transcriptional regulator | strong | 29 | 96 |
| | Paraburkholderia sabiae LMG 24235 | QEN71_RS36970 | | fumarate/nitrate reduction transcriptional regulator Fnr | insig. | 29 | 96 |
| | Pseudomonas segetis P6 | MPMX49_02303 | | Transcriptional activator protein Anr | insig. | 29 | 93 |
| | Escherichia coli ECRC101 | MCAODC_16030 | fnr | fumarate/nitrate reduction transcriptional regulator Fnr | sig. | 26 | 98 |
| | Castellaniella sp019104865 MT123 | ABCV34_RS06835 | | helix-turn-helix domain-containing protein | strong | 30 | 98 |
| | Dickeya dianthicola 67-19 | HGI48_RS10900 | | fumarate/nitrate reduction transcriptional regulator Fnr | cofit | 26 | 98 |
| | Dickeya dianthicola ME23 | DZA65_RS11360 | | fumarate/nitrate reduction transcriptional regulator Fnr | cofit | 26 | 98 |
| o | Rhodanobacter sp000427505 FW510-R12 | LRK53_RS14515 | | cyclic nucleotide-binding domain-containing protein | insig. | 31 | 99 |
| o | Rhodanobacter denitrificans MT42 | LRK55_RS13815 | | cyclic nucleotide-binding domain-containing protein | strong | 29 | 96 |
| o | Rhodanobacter denitrificans FW104-10B01 | LRK54_RS14095 | | cyclic nucleotide-binding domain-containing protein | strong | 29 | 96 |
| | Rhodopseudomonas palustris CGA009 | TX73_022020 | | helix-turn-helix domain-containing protein | no data | 32 | 82 |
| o | Pseudomonas syringae pv. syringae B728a | Psyr_3425 | | Cyclic nucleotide-binding:Bacterial regulatory protein, Crp | insig. | 30 | 98 |
| o | Pseudomonas syringae pv. syringae B728a ΔmexB | Psyr_3425 | | Cyclic nucleotide-binding:Bacterial regulatory protein, Crp | no data | 30 | 98 |
| | Dickeya dadantii 3937 | DDA3937_RS10950 | | fumarate/nitrate reduction transcriptional regulator Fnr | strong | 27 | 91 |
| o | Ralstonia solanacearum IBSBF1503 | RALBFv3_RS02015 | | Crp/Fnr family transcriptional regulator | insig. | 29 | 97 |
| o | Ralstonia solanacearum UW163 | UW163_RS15340 | | Crp/Fnr family transcriptional regulator | insig. | 29 | 97 |
| | Kangiella aquimarina DSM 16071 | B158DRAFT_1982 | | cAMP-binding proteins - catabolite gene activator and regulatory subunit of cAMP-dependent protein kinases | sig. | 28 | 98 |